SWT Series Spot Welder adopts high frequency countercurrent power supply, which is the most ideal welding method in resistance welding process at present. It is controlled by microcomputer, easy to operate, and looks good. It is widely used in lithium battery manufacturing and precision hardware manufacturing welding process.Chao SiSi Spot Welder adopts high frequency countercurrent power supply, which is the most ideal welding method in resistance welding process at present. It is controlled by microcomputer, easy to operate, and looks good. It is widely used in lithium battery manufacturing and precision hardware manufacturing welding process.